Published on November 22, 2023

How to Heat Synthetic Urine without a Microwave?

You are all set for your urine test; you have secured the synthetic urine kit and chosen the perfect clothes to conceal it discreetly. However, a key factor to consider before heading to the test center is to maintain the temperature of synthetic urine. 

Synthetic urine can be your best ally to pass that drug test, but only when it is at the right temperature. It can be a challenging task to keep the urine sample at the ideal temperature if you do not have access to a microwave. 

But how to heat synthetic urine without a microwave? There are many alternative methods to keep the fake pee in the recommended temperature range. 

It is very important to buy fake pee from a trustworthy brand. If you want some recommendations to purchase synthetic urine from a reputable brand that is within your budget, check this post.

Let us now check how we can heat your synthetic urine sample without a microwave. Here, we will also discuss the other relevant information.

The Importance of Keeping Synthetic Urine Warm

The first thing that is checked by a tester is the temperature of the sample. The temperature of human urine when it leaves the body is 97 to 100 degrees Fahrenheit. After 4 minutes or so, the urine temperature is cooled down to 90 degrees Fahrenheit. 

So, it is okay if your fake pee has a temperature between 90 to 100 degrees Fahrenheit. If the sample urine gets below 90 degrees Fahrenheit, it will raise suspicion and might create problems for you. Your sample will be rejected, and you might be asked to give the sample again.

Therefore, it is important to keep the synthetic urine at the right temperature. There are several methods to maintain the ideal temperature of the urine sample. Many people use these methods to pass the drug test. But first, we have to know how to heat synthetic urine without a microwave.

Heating Synthetic Urine Without Microwave

Synthetic urine can be heated without a microwave. Some synthetic urine kits come with heating strips to maintain the ideal temperature. However, if your sample does not have such a thing, you can opt for other methods to heat the fake pee.

Using Hand Warmers

This is one of the simplest methods to heat your synthetic urine. Hand warmers are generally used by hikers and outdoor enthusiasts, but they can heat urine samples as well. These packs contain chemicals that release heat when exposed to air. So you can wrap the urine sample in hand warmer to increase its temperature.

Using Heating Pads

People also use heating pads to warm synthetic urine. You can easily purchase heating pads from a drugstore. Using heating pads is very convenient; you can wrap the urine sample in a heating pad and keep it like that for a while.

Tapping Synthetic Urine to the Body

Some people tape the synthetic urine close to their bodies. You can secure it close to your thigh or can tape it in the groin area. The body heat will warm the sample, and it will ensure the sample stays at the body temperature.

Electric Warmer

This device can be used to heat synthetic urine, and you can maintain the temperature for up to four hours with one set of batteries. It is a reusable device that will be very convenient and easy to use.

Make sure to store the sample properly after using the kit. it is advisable to choose a synthetic urine kit from a reputed brand to increase the chances of passing the test.

How to measure the Temperature of Synthetic Urine

Maintaining the ideal temperature when carrying the urine sample to the test center is important. There are certain ways by which you can check whether the temperature is in the ideal range or not.

  1. Temperature Strips: As the name suggests, these are adhesive strips that can be attached to the urine sample. The strips change their color according to the liquid temperature they come in contact with.
  2. Digital Thermometers: These are the most accurate way to check the sample’s temperature.  You just need to immerse the probe into the synthetic urine and check the reading.
  3. Infrared Temperatures: These are non-contact devices that can easily measure the temperature of the synthetic urine sample. Point the device at the sample, and you will get an accurate reading.


  • How long does synthetic urine stay warm?

It depends on the method you use to warm the urine sample. Synthetic urine can stay warm for up to 20-30 minutes if you have attached it to your body. If you have heated it using the hand or electric warmer, it can stay warm for 2-3 hours.

  • How many times can you reheat the synthetic urine?

You can heat the synthetic urine as many times as you wish. However, after its use, storage of the sample is also important; if you do not store the synthetic pee properly, it can be infected by bacteria, which will not be suitable for further use.

  • How to use hand warmers to heat synthetic urine?

You can keep the urine sample in the hand warmer to heat the urine. The chemicals in the hand warmer react with air and produce heat. You can easily maintain the ideal urine temperature using the hand warmer.

Final Thoughts: How to Heat Synthetic Urine Without a Microwave?

This leads to the end of this article, it is very important to maintain the temperature of the synthetic urine. It is the first thing that is checked by the tester, so you have to heat the synthetic urine and keep it in the ideal temperature range.

There are many methods to use synthetic urine; you can go for hand warmers, heating pads, or electric warmers. Some people prefer to attach the sample to their body to maintain the ideal temperature of the urine. You can tape the urine sample to your groin or thigh area.

After heating the urine sample, you can check the temperature using a digital thermometer of temperature strips. You can also use an infrared thermometer to check the temperature. Using these techniques, you can heat and maintain the temperature in the range of 90 to 100 degrees Fahrenheit.

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